Steam-turbine.



1o stoom orgas turbines,

15 the-velocity of tl' 4o ois vim,

5c tllrouglionl.

JOHAN N :'l'l'UMlF.

STATES PATENT OFFICE.

F lili llilN, GERMANY, ASSlhNUll. T() GENERAL llilCUiflllG (JOMPANY, A UURYURVFION OF NEW' YORK.

STEAM-TURBINE.

Spcification of 'Letters Patent.

Patented Feb. 6, 190B.

Appligminn Sled Ilecembcr 2&6*I 1901. Bzensed Eeptember 19, 1904. Serial No. 224.960.

T0 alii whom' if muy :formi-Wn,.-

Be it known iliot I, JOHANN S'rUMmi, o subject of the King of Prussia., Gorman E1n eror, and sresidont of 27 Rankesirsssc, Berpiro,v have inventori cortili n new and useful lo rovements in Sbcamfurblncs, of which lio ollowing is an cxsct spocilication.

My invention relatos to improvcmcnls in and more especially to improvoments in the construction of the inlet-nozzle situated around the turbine-wheel proper, and has *for its purpose touprovido so improved' constrooion by oisansY of which slsfnn is convsrtfcd into a. rotary molion with tirs minimum of wrists or loss of power.

@ne ornbodinn. ol my invention repro sented in tho scrmopsnyng .lmwings, in.

zo which Figure 1 is sf vcr'iosl section of part o? the inlet-nozzle and para of lio turbine boeken'- wheol. y F'ffs. 2 and 3 show the constroslion of the non es. Fig. 4 is s horixonsl sccion z 5 through a, nozzle, showing the manner of lix in the nozzles in the frame.

he ring'vliy moans of which ibs stoom or gas isledA to the turbine-Wheelpropo? con sists, occordfag to my invention, of snglc 3o nozzles which aro arranged or combined so as to form a rin(y surrqundng thc turbine- Whcel. The nozzles consist ofrneeal pipes o, Figs. 2 and 3, provided wil'vli o, contrsclzcd passage b, situated in :Lig-ont Lilo :niddlc tlicrool'.

The steam enters tlicso nozzles in tindirei.-A

tion of the arrow shown in FGs. 2 :ind 3 :nid Vposses through lilo narrow passages b, Winfreupon it expands, wlxcrciiy illu: iin-orgy ol pro sul-o is converted into microg of' velocity, or

The noz/tics uw first mondial'- tured with a round moss-notion lllroligliou, as shown in Fig. 2, wlivroiipon illu lovxor or Sli-Called xpzuision purl. nl' tho .snow is compressed by suimblc dios, so Non. illu cross-section of this imrt bui-onlus :a lmrillrlograin, as shown nt tlm loftr in Fig. 3. Tho m;- ansionpart of the nozzles must` lic sirsigln 111 ordo to allow ol' o. pcrl'cct cximnsf-m oli lw steam and so ce imi distrilnztion oi' thi. somo Tini onds ofA ll'z no beveled, is liown il; lilo'. i, io cv Will il the in. 'ipliciy o? Lisi im'l1im-\\lnfol. fmrnof around lw iwliimhwhooi is so 1mistructcd thai. thc for ends of tlir inv/:zins

steam-jets reacting againsty oaoh other are en-`- :Lil-ely avoided. This advantage can only be afmncd when thc nozzles have a rectan ular disolisrgo or .expansion sociion throng lout. In event of the cx mnsion port. c of the noz- :alo having n round section flic continuity of the shown-ring will l o broken ab thc points wi'icil.: lille cylindrical mills contact, and tho sovra-:1l siriani-Mis would thon react. n on nach rallier, so than' their direi-.tions of ow would notl il# sxzii'vij,"parallel to each other und ilio buCkoL-spoccs would not bc properly iliod.

In order to lix tlm nozzles in tho framcf, Lilo-jf oro 'provided n'itlinoscs or {longo-pieces `d on bolli siel-s, :is muy be ssen from thc ond viows mi rho rigid-hond sido of Figs. 2 sind 3. [n the frnmoflolcs lor rcociving the nozzles sro provided, the diameter of which corresponds in llw upper part exactly to tho dinincrcr of ilse port. o. of llic nozzle. In thc lowvr por(f {.llcscviion of i lx1 bolos corresponds to n. cross-section lliroiiglz tlw nom/.lcs and Elio lingcs d. Fig. l. Al ilw oppor vnd flic dsnmior ol' flic indus is ivlilnrgod lo ruocivc the rclnlnng devices or nuts g. ln mount in;r lw nomlvs in pisco they `:irc inserted .from lim insido ol' lilo iin'f intro the bolos un- Lii tlic Hongos d :duit illu zicis d', Fig. 4, after which wy nu sccorud in plfiso by tlwnuts gg'. 'Flic onli-i' dizmwlrr ol' nach nul, corro sounds lo illu dimnclci' oi lic upper ond ol a holo in iw l`rznncf. By rotating tlienut, the lovsor odge tliox'col will :ilnit rho mecs g', tlwrvlyl rigidly holding;y llic nozzle in tho immo. B5? lixing; llw nozzles in flic Friunof in this wary tiling.Y i-:m lio olivo ont und ri- ;ilznid wiilioul. distnrliit i-llo others or triliing oli' thc wlnilvunozzl-tf. r, further sdnnlsggiconsists in lln 'furl limi flic nozzles man iw misil)V roplnrcil wholly or in part. lais airrzmgcmoni ilJ is o :dolido militer to a'izziiigo lsoos isf-soi.. oi nox/.los inning' ono cx! expension-as, for example, where it` is desired to use steam or gas ol' dill'erent pressure.

It will be understood that the arrangement showniean be used for turbines operating on the total-injeetion plan as well as for turbines operai ing on the partial-injeetion plan. Thus, for example, nozzles mabr be irovided on one part ot the frunie only or the frame may he provided with parts in which there are n o nozzles.

In at-,etndanee with the provisions of the Patent Statutes l have deseribed the principle of operation oll nl v invention, together with the a )pnratns whieh l now eonsider to represent the best embodiment thereof; but l desire to have it understood that the apparatus shown is onlyv illustrative and that the invention ean be carried out by other means.

What l elaini as new, and desire to secure by Letters Patent. of the United States, is

l. ln n steunt or ,gus turbine, the combination of a bneltotswlieel and n nozzle-fran1e, of nozzles fixed in the traine, the said nozzles eoniprising,r an inlet part having a round section, a straight expansion part having a reetangular sei-tion and it narrow passage situated lwtween these parts, substantially as deseribed and lor the purpose set forth.

L. In a steam or gas turbine, the combination of a bueket-wheel and a nozzlesframe, of nozzles lixed in the frame, the said nozzles comprising an inlet part having a round sec` tion, a straight expansion part having a rect'aiwular seetion and a narrow passage situated between these parts, the nozzles being situated so as to leave onl)r a sinall wedgeshaped part between the expansion part of the sinne, substantially as described and for the purpose set forth. f

3. In an elastic-lluid turbine, the combination of a bucket-wheel, a nozzle-support which has the saine curvature as the wheel and is provided with a number of openin is arranged in the saine plane, and detacha le nozzles which are located in said openings and in close proximity so as to discharge the motive fluid in a solid jet.

4. In an elastic-fluid turbine, the combination of a bucket-Wheel, a nozzle-support having the sinne enr :iture as the wheel and provided with n nlnnher oleloselyassoeiated openings whieh discharge the fluid ina solid coluinn, detachable nozzles located in said olpenings, and nit-:ins lor seenring the nozr z es in place,

5. In un elaslie-lluid turbine, the combination of a buekenwheel, a nozzle-support having; the sanneurvature as the wheel and provided with a nlnnber of eloselvt-assoeiated openings, nozzles loeated in said openings whieh mayY be removable b vrniovingr them in the direetion of their length, and individual deviees for seeming' the nozzles in place whit-h ure so arranged that one nozzle can be removed without disturbing the other er others.

In an elastiedluid turbine, thc combination ol'a buche t-wheel having,r peripheral buehets, a nozzlo-snpport which surrounds th.` wheel and is in proxiniit)v thereto, nozzle-ri eeivingjr o ienings formed` in the sup ort which` are closei)V associated, and a plura ity of noz zles located. in said openings which are nearer together at their inner than their outer ends, shoulders on the nozzles which determine their positions, and means for securing the` nozzles in place.

7. In an elzistic-luid turbine, the eombinsr4 tion of a bucket-wheel, a nozzle-su port, and a luralityY of closely-associated endl-individu4- a ly-rexnovable nozzles whichr dischar e fluid to the Wheel in the forni of e, solid jet, t e said nozzles being alike in form.

8. In an elastic-fluid turbine, the combination of a buekehwheel, a nozzle-sup) plurality of elosely-essociated detacha enozort, aY

zleswhich discharge fluid to the wheel in the" form of a solid jet, the sai d nozzles being alike in form, and means for securing the severai nozzles to the support. v l

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. A

J OHAN N STUMPF.`

Witnesses:

WOLDEMAR HAUPT, HENRY HASPER. 

